How to connect a wharfedale mp2800 amp to a yamaha p7000s amp?

Use "Main Out Norm" from the gfp-555 pre-amp and connect to Canon connectors of the Yamaha. This requires a standard RCA to Canon cable for correct connection. Start with this first, if that works OK than try the "Lab" output of your pre-amp, but I am not sure if the Yamaha can handle this or the results of sound quality. Your choice.

I'm sorry. I have no idea what you're asking, but if you need a service manual, you'll have to go to the Yamaha website.

This is a brilliant and hugely powerful amp. If you wanted you can take a 'y' cable out of your phone, mini jack into left and right 1/4inch jacks, to plug in directly. However, it would be better to invest in a small mixer, 5 channel maybe, around 40-60 pounds, with one mic channel and 2x stereo channels. This would allow you to keep the amp on full volume, for best results and control, while having a proper control unit with knobs or faders on a table top with the sound source. Far, far better than plugging in direct. Otherwise you would have to keep adjusting the controls on the amp, separate channels, which is a pain!
Take care over choosing speakers because if they are not powerful enough you will blow them up in your excitement! I'd go for a pair of 8ohm 400-600 watts rms. full range cabs - 12inch or 15inch driver with horns.

Yamaha P7000S service manual. It includes the schematic diagram. Click Get Manual.

I had the exact same thing, no sound at all but light on and heatsink slightly warm. Returned amp module to Wharfedale and it was diagnosed as a fault in the muting circuit and repaired under warranty. Asked for a circuit diagram but they don't give them out while the equipment is still in production.

They are 200 watts is peak and 20 watts is rms. Definitely not a lot of watts. I don't think I would recommend it for what you are looking for. Hope this helps if you need any other assistance please let me know.
Thank you,
Lee

Best find your local dealer as cd are not usually supplied to end users.

Hiya, try a different input cable (from amp to sub) if you have make sure that is ok.

Failing that if there is an earth in the plug, try to disconnect that (earth loop) - unlikely but hey electronics.... anything possible :)

If still there with new cable, earth off etc, then the Yamaha could have a problem but find that difficult to swallow...

Let me know if helps, see any other possibilty
Best of luck

first go have **** in wash room and then get that **** and put it on face it will start wrking okay